Hello,
I'm around King's Cross until December, and I want to play lots of tennis while I'm out here. Any good free courts around here? Do you have to book all of them? Contact me anytime if you want to hit!

Your best bet is just to stroll into some open air courts in the parks, though they're often booked - you can book through the local council for Ravenscourt Park here: http://www.lbhf.gov.uk/directory/leisure_and_culture/sports_clubs_and_centres/sports_pitches_and_courts/20532_tennis_bookings.asp
As for tickets, you'd better hurry up! Yes, Wimbledon Debenture Holders are very good - they're the cheapest, and they've been super efficient when I've used them. But why hang about?

So any places in London open to letting Americans visiting for Wimbledon might knock a few balls about? And as Londoners, any recommendations on the best places to buy one's tickets? I've heard good things about www.wimbledondebentureholders.com

Hi everyone... anybody from this group based in West London? Would like to expand my tennis network around these parts.

I play down at David Lloyd in Heston - which has indoor courts as well (although you need to be a member, I can bring in guests but it's quite hefty at £14 a visit, but nice if you want to play when the weather's prohibitive outside, or if you're just gagging for a game in the evening after work !)